Lead-flattening product for lead paints



UNITED STATES -WALTER E. WRIGHT, OIE CLEVELAND, OHIO.

LEAD-FLATTENING PRODUCT FOR LEAD PAINTS.

No Drawing.

To all whom may concern:

Be it known that I, WALTER E. WRIGHT, a citizen of the United States ofAmerica, residing at Cleveland, in the county of Guyahoga and State ofOhio, have invented certain new and useful Improvements in Lead-Flattening Products for Lead Paints; and I hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it pertains to make anduse the same.

This invention relates to an improved lead-flattening product suitablefor use in making lead paint, and pertains more especially to alead-flattening product adapted to be mixed with commercial keg-leadconsisting of white lead and linseed oil in Y the proportion of abouteight pounds of linseed oil to about ninety-two pounds of white lead andthinned by the addition of turpentine, benzin or other thinning vehicleto produce a lead paint which can be freely applied with a paint-brush.

The object of this invention is to produce a lead-flattening product themixture of which in suitable proportion with ordinary commercialkeg-lead thinned with turpentine, benzin or other thinning vehicle,results in the production of a lead paint that will dry to a dull orflat finish while thinned to the consistency of paint and which can befreely applied with a brush without showing brush-laps.

The present invention more especially pertains to a lead-flatteningproduct of the character hereinbefore mentioned comprising Chinese tungoil, a semi-drying oil, such, for instance, as soja bean oil orcotton-seed oil, and a suitable varnish, such, for instance, as a heavybody resin-gum and oil varnish which is adapted to adequately mix withand to set more rapidly than tung oil. In lieu of the semi-drying oilmentioned a non-drying oil, such, for instance, as paraflin oil, may beused.

I would here remark that linseed oil dries with a tough and elastic skinwhich makes it the most desirable oil as a binder for a lead paint, andthat linseed oil dries too quickly for a fiat paint, but in a coat ofpalnt involving the use of my improved lead flattening product thedrying of the linseed oil is retarded by the semi-drying oil ornon-drying oil hereinbefore mentioned. I would also remark that saidsemi-drying oil or non- Specification of Letters Yatent.

Patented Mar. 8, 1921.

Application filed July 12, 1917. Serial No. 180,093.

drying oil is found to be undesirable and impractical without thepresence of a suitable quantity of the hereinbefore mentioned tung oilwhich of itself dries with a waxy film and which is the strongest dryingvegetable oil known and which when used in proper proportion produces acatalytic condition and formation with linseed oil, the hereinbeforementioned semi-drying oil or nondrying oil, whitelead and turpentine orpetroleum distillate.

In making my improved lead-flattening product the tung oil and thehereinbefore mentioned oil employed in retarding the drying of the tungoil are preferably mixed, and then with said mixture of said oils ismixed the hereinbeforementioned varnish to produce the desiredlead-flattening product which is ready for mixing with previouslythinned commercial keg-lead so as to produce a lead paint which will dryto a dull or flat finish while said lead-flattening product is thinnedto the consistency of a paint that can be freely applied with a Ibrushwithout liability of showing brushraps.

To each pound of tung oil employed in making said lead-flatteningproduct I preferably use from about one-eighth of a pound to about oneand one-half pounds of the hereinbefore mentioned varnish and from abouta half pound to about five pounds of the hereinbefore mentioned oilemployed in retarding the drying of the tung oil. I would here remarkthat I have obtained highly satisfactory results by using the varnish,the tung oil and the oil for retarding the drying of the tung oilsubstantially in the proportion of two pounds of the lastmentioned oiland one-half pound of the varnish to one pound of the tung oil. Therefore, I prefer, in making my improved leadflattening product to useabout a half pound of the varnish to about three pounds of the mixtureof tung oil and soja bean oil. That is, the quantity of tung oilused ispreferably less, by weight, than the quantity of soj a bean oil used,and considerably more, by weight, than the quantity of the varnish used.

I would also state that in making a lead paint involving the use of myimproved leadflattening product from about one to about eight pounds,and generally about two pounds, of said. lead-flattening'product areused with about one hundred pounds of the commercial keg-lead which hasbeen suitably thinned with turpentine or other thinning; vehicle.

What I claim is- 1. A lead-flattening product adapted to be used inmaking lead paint and comprising tung oil, an oil which when mixed withtung oil retards the drying of the tung oil, and a varnish adapted tomix with and to set more rapidly than tung oil, said; varnish, thesecond-mentioned oil and the tung oil being substantially in theproportion of about onehalf of a pound of the varnish and about twopounds of said second-mentioned oil to about one pound of the tung oil.

2. A lead-flattening product adapted to be used in making lead paint andcomprising tung oil, an oil which when mixed with tung oil retards thedrying of the tung oil, and a heavy body resin-gum and oil varnish,

l 3. A lead-flattening product adapted to be used in making lead paintand comprising tung oil, soja bean oil and a varnish adapted to mix withand to set more rapidly than tung oil, said varnish and the aforesaidoils being in the proportion of from about oneeightb. of a pound toabout one and one-half pounds of the varnish and from about a half poundto about five ounds of the soja bean. oil. to one pound of t 1e tungoil.

4. A lead-flattening product adapted to be used in making lead paint andcomprising tung oil, soja bean oil and a heavy body resin-gum and oilvarnish, said varnish and the aforesaid oils being substantially in theproportion of about one-half pound of the varnish and about two poundsof the soja bean oil to about one pound of the tung oil.

5. A lead-flattening product adapted to be used in making l ad paint andcomprising tung oil, an oil which when mixed with tung oil retards thedrying of the tang oil, and a varnish adapted to mix with and to setmore rapidly than tung oil, said varnish being used. in considerablysmaller quantity, by weight, than the tung oil, and the tung oil beingused in smaller quantity, by weight, than the second-mentioned oil.

6. A lead-flattening product adapted to be used in making lead paint andcomprising a varnish adapted to mix with and to set more rapidly thantung oil, and a mixture of tung oil and an oil adapted to retard thedrying of the tung oil, said mixture of oils and the aforesaid varnishbeing in the proportion, by weight of a considerably larger quantity ofsaid mixture of oils than of the varnish.

In testimony whereof, I sign the foregoing specification, in thepresence of two witnesses.

WALTER E. WRIGHT.

Witnesses CAsPnR J. Donna, B. C. BROWN.

